简介：MysterywriterJanetFrobisherlivesaloneinadarkEnglishcountryhouse,whenshe'snotphilanderingwithhersecretary'sfiancée.Atanextremelyawkwardmoment,shehasanunwelcomevisitor:GeorgeBates,whoclaimstobethepartnerincrimeofJanet'sestrangedhusband.GeorgeinsinuateshimselfintoJanet'shomeandlifedespitehereffortstogetridofhimthetangledrelationshipsdevelopintoamacabre,murderouscat-and-mousegame.